Valve



UNITED STATES PATENT OFFICE.

WILLIAM B. BBASSINGTON, OF PORT RICHMOND, NEW YRK.

VALVE.

specification of Letters Patent.

Application led February 13, 1920. Serial No. 358,507.

skilled in the art to which it appertains to y make and use the same. i

My invention consists 1n the novel features hereinafter described,reference being had to the accompanying drawing which illus-` trates oneembodiment of the invention, selected by me for purposes ofillustration, and the said invention is fully disclosed in the followingdescription and claims.

In the use of valves in steam lines and other lines, leaks often developon account of defects or wear in the valve stem packing, or due to thefailure of the valve to properly seat, owing to Y injuries to the valveseat or to the valve itself, which cannot be conveniently repaired,owing to the fact that access lcannot be had to the valve seat and valvewithout discontinuing the use of the entire pipe line, and in someinstances without putting the plant or a portionof the plant out ofcommission. This is especially true in steam lines, particularly inrelation to the valves thereof nearest the source of supply, and as aresult in thousands of instances valves are permitted to remain in aleaky condition with the consequent wastage of steam or other fluidpassing through the line, and involving a corresponding loss ofefficiency in the operation of the line.

The object of my invention is 'to provide a valve which is soconstructed that at any time it. may be repaired by regrinding the valveseat where necessary, by repairing or replacing the valve proper, or byrepackin the valve stem, to prevent leakage, an otherwise maintain thevalve in a high state of efficiency and without the necessity of morethan temporarily interfering with the operation of the line. To this endl provide the valve casing with a longitudinally movable sleeve having apart extending through the communicating apertilre inthe partition ofthe valve casing, said sleeve carrying the main vulve seat. the valveand its operating stem., and being provided with apertures communicatingrespectively with the inlet and outlet apertures of the `val've casing,

when the sleeve .isin normal position, the said sleeve being providedwith an auxiliary cut off valve adapted by the movement longitudinallyof the sleeve, to close the communicating aperture in the internal webor partition of the valve casing, and thereby permitting the removal `ofthe valve for repairs to it and to the valve seat, or to the packing ofthe valve stem.

In the accompanying drawin Patented May 24, 1921.'

Figure 1 represents a verticallongitudinal sectional viewof'a valveembodying my present invention and selected by me for purposes ofillustration, the longitudinally movable sleeve being shown in normalposition i and the main valve being shown in open position.

Fig. 2 is a similar view showing the valve casing and sleeve, the latterbein in position to cause the Vauxiliary cut o valve to close theaperture in the internal partition of the valve casing, and the mainvalve with its stem and gland orpacking being removed.

Fig. 3 is a detail view of the main valve with its stem and glanddetached.

Referring to the embodiment of my invention herein shown, l representsthe valve casing which is provided with inlet and outletapertures, hereindicated at 2 Aand 3 respectively, which are preferably threaded in theusual manner for the reception of the usual nipples or pipe sections 4and 5, which may constitute portions of a pipe line for conveying steamor other fluid or liquid. Within the valve casing is a partition 6interposed between the inlet and outlet apertures, and provided with acommunicating aperture 7 which is preferably formed with an annularbeveled valve seat 8 above the same and an oppositely beveled annularvalve seat 9 below the same, as indicated in the drawings. l0 representsthe longitudinally movable sleeve `which extends through an aperture inthe valve casing concentric with the communicating aperture 7,.

position, to make a tight joint. The valve sleeve is also provided withan annular valve communicating aperture portion 12 above the partition 6in the form of an annularrbeveled flange, for engaging the valve seat 8,as shown in Fig. 1, when the sleeve is in normal position, to make atight joint. One advantage of the annular beveled valves and seatsresides inthe fact that the beveled or conical valve portion can be morel readilyv forced into its corresponding seat to make a perfectly tightjoint thanwhere it is attempted to obtain a tight joint be tweenavalveand seat having plane or flat surfaces. Another advantage resulting fromthe beveled form of valves and seats 1s that an sediment depositedthereon, as on the va ve 11, when in open position, will tend to slideoil' and not remain as it' would upon a horizontal surface, and thiskeeps the valve 11 clean when not in use, so that when itis brought intouse, in case of an emergency it can be drawn tightly against its seat tofull its function. Within the valve `sleeve is provided a transversepartition 13 having` a central aperture 14 which forms the main of thevalve and is" .valve seat 15. 'The valve sleeve is provided with lateralapertures 16 and 17 respectivel preferablyv located on opposite sides oft e artition 13 and communicating with the inlet and outlet a ertures ofthe valve casing, respectively. or convenience of assembling, I preferto-make the lower portion of the sleeve car ing the auxiliary cut olfvalve 11 se arate rom the upper portion to which it 1s connected byscrew threads, or otherwise, in order that, the parts of the sleeve canbe assembled on opposite sides of the partition 6 within the valvecasing, and I also prefer to provide the valve casing at the bottom'withan aperture 18, closed by a plug 19, which mayI be threaded or otherwisesecured therein after the sleeve is assembled and v'placed in the valvecasing, to facilitate the introduction of the lower portion of thesleeve. For the same purpose I prefer to providethe upper surrounded bsidelof the valve casing with-an. enlarged aperture 2O of greaterdiameter thanthe sleeve 10 and to fit the same with a bushing` 21, asshown, the said bushing being thread ed into the aperture 20` andprovided internally for a portion of its lengths at least with screwthreads, as indicated at 22, en

gaging a threaded' portion 23 at the lower end of the sleeve 10, sothatvby rotating thesleeve within the bushing, the sleevewill be, movedlongitudinally." The bushin 21-is to. all intents and purposes a partoft e valve casing, but is made separate therefrom to facilitate 'theinsertion of the sleeve which on account of the projecting annular valvepor? tion 12 could not otherwise be conveniently lnserted in the casing.In order to make a..

tight joint between the sleeve and valve casv ing, I prefer'to provide agland of ordinary construction, an to this end the upper end vunder highpressure, the

of the bushing 21 is preferably provided with an annular recess toreceive packing 24 which is compressed by a threaded follower 25engaging a threaded portion of the bushing, as indicated in thedrawings. The upper portion of the sleeve which passes through the glandis preferably cylindrical and smooth so as tomake a t1ght`joint in allpositions of the sleeve. This gland is very important as it permits thesleeve to be forced down tolany extent required to make a tight jointbetween the annular beveled valve portion 12 and the beveled seat 8 andat the `same time permits the sleeve to be withdrawn when required toseat the auxiliary valve 11 on the seat 9 without at any'.

time permitting the escape of the fluid in the pipe'line which may beand frequently is escape of which fluid would result in injury to theoperator rso or operators and to the building in which the valve may belocated. In the upper end lof the sleeve I provide a plug, indicated at26,

which is threaded into the upper end o f the sleeve as shown, and ispreferably held from rotation with respect to the sleeve in any dei..sired way, as by means of a removable screw .l 27, the plug having ahexagonal portion 28,.

by means of which it can be conveniently rotated with the sleeve, orwith respectto the sleeve as desired. The plug 26 is provided with acentral longitudinal aperture having coarse threads, indicated at 29, toengage nular recess to receive the valve proper 34," which may be ofliber, rubber, soft metal, or

other suitable material, held in place` by a. shouldered nut 35 on athreaded stem 36 provided on the lower face of the valve body.

The upper face of-the valve body .1s pro` vided with a central'recess toreceive the lower end of the valve stem 31, which stem is preferablylprovided at its lower end with an enlargement 37, in this instance,formed and body are held inassociation by a .threaded sleeve v38 screwedinto the recess in the by a diskmade 'separate' from the valve y stemand secured thereto, and the valve stem a'relative rotation-between themto avoiduni due wear ofthe valve 34f'upon its seat. In

fluid or liquid around the valve stem 31, the

upper end of the plug 26is -provided with a: packing recess surroundingthe 'valve stem to receive packing 39, which isl compressed 12o' upperportion of the valve body, thus hold? ing the valve stem and body sothat they will move vertically together but permit of sho-wn in aroundthe valve stem by a follower in the usual manner. n

Fig. 1 represents the position of the sleeve 10 when the valve is inoperation, the valve itself being shown in open position in this figure.It will be seen that the sleeve is in lits lowermost position with thevalve 12, in

lateral aperture 17 in the sleeve, through the' erture 14 in the sleeve,and thence throng the aperture 16 of the sleeve main va ve a to theoutlet aperture V3 and ipe 5. Obviously the valve may be close byscrewing down the valve stem 31 until the valve 34A engages' the seatl15, as indicated in dotted lines in Fig. 1.

If now itis desired to repair the valve or repack either of the glands,it is only necessary to rotate the sleeve 10 in such a direc-l tion asto move it longitudinally in the valve casing to bring the auxiliary cutoff valve 11 in enga ement with the valve seat9, as

ig. 2, thereb cutting oif all communication between t e inlet and outletopenings 2 and 3 by closing the opening in the partition 6. z.lhisrotation of the sleeve can be eiected by applying a wrench to thehexagonal portion 28 of the plug 26, or otherwise as desired. Byloosening the screw 27, the plu 26 can be unscrewed and the valve,togeier with its stem, can be ,en-

tire'ly removed, as indicated in Figs. 2 and is affords full opportunitynot only to v `.repair or replace the valveA 34 in case the i latterhasbeen worn, or to repairor re lace -40 the packings for the glands, butalso a ords an opportunity to re ind the valve seat 15,`

as'clearly shown in ig. 2 by the use of an appropriate tool which can beinserted withinthe sleeve 10 for thepurpose. When the valve and plug 26have been replaced within the sleevelO .the latter can' be turned so asl to restore it to normal position, and the ers valve used in theordinary manner.

By -means`of my in'iprovedvalve it will be seen that the valve orpackings can be renewed or repaired or the valve seat ground withoutermitting the escape of steam or other fluld passing throu h the valve,-and What I laim and desire tosecureby Letters Patent is 1. Thecombination with Va valve casing l provided with inlet and outletapertures, a partition havin acommunicating aperture therein and -va veseats on its upper ,and 'lower faces surrounding said aperture 'saidcaslng being provided w1th a sleeveiaper provi casing being ture coaxialwith said communicating aperture, of a sleeve closed at its lower endand extendlng through said sleeve aperture, and

communicatin aperture, and provided with i an annular va ve portionabove said partition normally engaging the upper valve seat thereof, andan annular beveled valve portion below said partition for engaging thelower valve seat thereof, but normall out of engagement therewith, saidsleeve eing e with lateral apertures communieating 'respectively withthe inlet and outlet aperturesof the casing, and an'intermediate mainvalve aperture and seat, a main valve 4carried by said sleeve forengaging` said main valve seat, and a'packing gland vfor e'ecting a tiht joint at all times between the sleeve an the valve casing, whilepermitting the longitudinal movement of the sleeve to bring one or theother ofl its said valve portions into engagement .with its respectiveseat.

2. The combination with a valve casing l provided with inlet' and outletapertures, a 7

partition having a communicating aperture therein .and valve seats onits vupper and lower aces surrounding saidaperture, said rovided with asleeve aperture coaxial with said'communicating aperture, of a sleeveclosed atits lower end and extendi through said sleeveaperture, andcommunicating aperture, and provided with an annular valvepportion abovesaid partition normally engaging the upper valve seat thereof, and anannular beveled valve porloo tion belowrsaid partition for engaging thel lower valve seat thereof, but normally out of engagement therewith,said sleeve being provided with lateral apertures communieatingrespectively-with the inlet and outlet apertures of the casing, and anintermediate mainvalve aperture and seat, a main valve carried by saidsleeve, for engaging said main valve seat, said sleeve' having a plaincylindrical exterior portion and a threaded exterior ortion engaging athreaded part connecte 4with the-valve casing, whereby rotation of thesleeve will eiect longitudinal vmovement thereof, and a packing glandv.for

insuring a tight joint at all times 'between the plain cyllndricalportion of the sleeve u and the cas1ng,jwhile ermittingthe.longitudinalmovement of t e sleeve to'bring one orthe other -of its valve portionsinto engagement with its respective seat.

3.]The combination with a valve casing j` provided `withinlet and outletapertures, a

partition .provided .with a communicating f aperture and oppositelybeveled valve seats 'on its upper and lower faces, said casing having asleeve aperture coaxial vwith said communicating' aperture,` of abushing threaded into said sleeve aperture and provided with a packingrecess, a sleeve closed'` at its lower end extending through saidbushing and through the said communicating aperture, and provided withannular beveled valve portions above and below said partition forengaging said beveled valve seats, said sleeve being provided withlateral apertures located respectively on opposite sides of saidpartition when the sleeve is in normal position and having anintermediate aperture Vprovided with a main El@ valve seat, a main valvecarried by said recess, packing in seid recess, and a follower 1iportion Aengaging .said bushing for com- A pressing said packlng.

In testimony whereof I aix my signature.

WILLIAM i3. BRASSNGTON.

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